Improvement in knife-scouring machines



H. SY'MONDS.

:KNIFE -SCOURING MACHINE.

Patented May 30, 1876. 22

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NITED STATES PATENT CFFIOE.

- HERBERT SYMONDS, OF TROY, NEW YORK.

IMPROVEMENT IN KNlFE-SCOURING MACHlNE$- Specification forming part ofLetters Patent No. 178,088, dated May 30, 1876 application filed March25, 1676.

To all whom it may concern:

Be it known that I, HERBERT SYMONDS, of Troy, in the county ofRensselaer and State of New York, have invented a new and ImprovedKnife-Polisher, of which the following is a specification The inventionis an improvement in the class of knife-polishers in which thepolishingpowder is fed downward to the polishing-pads from a reservoir.The improvement relates to the construction and arrangement of parts, ashereinafter described.

Figure 1- is a sectional elevation of my improved'knife-polisher, takenon the line a: a: of Fig. 2; and Fig. 2 is a side elevation.

Similar letters of reference indicate corresponding parts.

A is the base of the machine, which is adapted to set on a bench ortable, and has a clamp, 13, said clamp being pivoted to the base, sothat it will turn up sidewise to allow the machine to be set down on thetop of .a table, and to allow the base to set fairly on the table orbench when clamped to it. From the upper side of the base rises a ringor flange, G, aroundwhich a ring-shaped rubber spring, D, is fitted tohold the lower leather polishing-pad E. The upperpad F rests on E, andis pressed down on it by asimilar ring-shaped rubber spring, G, which isfitted on the neck H of the powder-box I, under the guide-plate J, whichis fitted to the frame K so as to work up and down as the springs shift,and at the same time keep the upper spring and the bottom of thepowder-box in place. The pressure is applied to the pads by the screw L,screwing down through the top of the frame K, on the top of thepowderbox. screw, if preferred, but it is believed that the screw willbe the best, as it can be adjusted at will to vary the pressure. Thepolishingpads are kept in position by the long studs M, extending upalong the frame K, from its base. The rubber springs of the formrepresented are better than other springs for this purpose, because theypress the pads alike, whatever may be the form of the blade. The

upper pad has a hole, N, in the center to allow the powder to feed downfrom the box above.

Having thus described my invention, I claim as new and desire to secureby Letters Patent 1 1. The combination, with the flanged baseA, frame K,and stud-pins M, of the box I, setscrew L, guide-plate J, rubber springsD G, and interposed pads E F, as shown and described.

2. The combination, with the cup-shaped base A, of the pivoted clamp B,as shown and described.

HERBERT SYMONDS.

Witnesses:

W. R. MoORAcKEN, DANIEL DATER.

A spring may be used instead of the,

